Numerical calculation of thermal convection in porous media in two dimensions with applications to nuclear repository design
Thermal convection induced by nuclear waste heating could be an important mechanism in the transport of radioactive nuclides to the biosphere. A computer code HP2D was developed to calculate this effect. The code calculates transient and steady state heat and fluid flow in porous media. It allows for anisotropy of hydraulic conductivities, temperature dependent fluid density and viscosity. A heat source and a variety of temperature and flow boundary conditions can be easily employed. The code solves two coupled governing equations. The time dependent heat transport is solved by an alternating direction implicit technique; and the steady state flow of water is solved by a Gauss-Seidel Poisson solver. A sample calculation of thermal convection about a repository is given.
- Research Organization:
- California Univ., Livermore (USA). Lawrence Livermore Lab.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5388237
- Report Number(s):
- UCID-18700
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
510301 -- Environment
Terrestrial-- Radioactive Materials Monitoring & Transport-- Soil-- (-1987)
54 ENVIRONMENTAL SCIENCES
58 GEOSCIENCES
580100 -- Geology & Hydrology-- (-1989)
ANISOTROPY
COMPUTER CALCULATIONS
COMPUTER CODES
CONVECTION
DENSITY
ENERGY TRANSFER
ENVIRONMENTAL TRANSPORT
FLUID FLOW
FLUID MECHANICS
H CODES
HEAT TRANSFER
HYDRAULICS
MASS TRANSFER
MATERIALS
MECHANICS
NUCLEAR FACILITIES
PHYSICAL PROPERTIES
POROUS MATERIALS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE FACILITIES
RADIOACTIVE WASTES
RADIONUCLIDE MIGRATION
VISCOSITY
WASTES